package com.atguigu.config;

import com.atguigu.bean.Yellow;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.EmbeddedValueResolverAware;
import org.springframework.context.annotation.*;
import org.springframework.util.StringValueResolver;

import javax.sql.DataSource;
import java.beans.PropertyVetoException;

/***
 * Profile:
 *      Spring为我们提供的可以根据当前环境,动态的激活和切换一系列组件的功能
 * 开发环境、测试环境、生产环境
 * 数据源(/A)(/B)(/C)
 * @Profile:指定组件在哪个环境的情况下才能被注册到容器中,不指定,任何环境下都能注册这个组件
 *
 * 1)加了环境标识的bean,只有这个环境被激活的时候才能被注册到容器中,默认是default环境
 * 2)写在配置类上,只有指定的环境的时候,整个配置类里面的所有配置才可以生效
 * 3)没有标注环境标识的bean,在任何环境下都是加载的
 */

@Profile("test")
@PropertySource("classpath:/dbconfig.properties")
public class MainConfigProfile implements EmbeddedValueResolverAware {

    @Value("${db.user}")
    private String user;

    private StringValueResolver valueResolver;

    private String  driverClass;

    @Profile("test")
    @Bean
    public Yellow yellow(){
        return new Yellow();
    }

    @Profile("test")
    @Bean("testDataSource")
    public DataSource dataSourceTest(@Value("${db.password}")String pwd) throws PropertyVetoException {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setUser(user);
        dataSource.setPassword(pwd);
        dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/test");
        dataSource.setDriverClass(driverClass);
        return dataSource;
    }

    @Profile("dev")
    @Bean("devDataSource")
    public DataSource dataSourceDev(@Value("${db.password}")String pwd) throws PropertyVetoException {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setUser(user);
        dataSource.setPassword(pwd);
        dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/project");
        dataSource.setDriverClass(driverClass);
        return dataSource;
    }
    @Profile("prod")
    @Bean("proDataSource")
    public DataSource dataSourceProd(@Value("${db.password}")String pwd) throws PropertyVetoException {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setUser(user);
        dataSource.setPassword(pwd);
        dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/ssmbuild");



        dataSource.setDriverClass(driverClass);
        return dataSource;
    }

    @Override
    public void setEmbeddedValueResolver(StringValueResolver resolver) {
        this.valueResolver=resolver;
        driverClass=valueResolver.resolveStringValue("${db.driverClass}");
    }
}
